package com.serene.im.controller;

import com.serene.im.enums.HttpCode;
import com.serene.im.utils.IpUtil;
import com.serene.im.utils.JsonResult;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletRequest;
import java.io.File;
import java.io.IOException;
import java.net.SocketException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.UUID;

/**
 * @author : chenKeFeng
 * @date : 2023/2/14 9:58
 */
@RestController
@RequestMapping("/img/")
public class ImgController {


    /**
     * 时间格式化
     */
    private SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy/MM/dd/");

    /**
     * 图片保存路径，自动从yml文件中获取数据
     * 示例： E:/images/
     */
    @Value("${file-save-path}")
    private String fileSavePath;

    @PostMapping("upload")
    public JsonResult<Object> uploadFile(MultipartFile file, HttpServletRequest request) {
        //后半段目录：  2020/03/15
        String directory = simpleDateFormat.format(new Date());
        /**
         * 文件保存目录  E:/images/2020/03/15/
         * 如果目录不存在，则创建
         */
        File dir = new File(fileSavePath + directory);
        if (!dir.exists()) {
            dir.mkdirs();
        }
        System.out.println("图片上传，保存位置：" + fileSavePath + directory);
        //给文件重新设置一个名字
        //后缀
        String suffix = file.getOriginalFilename().substring(file.getOriginalFilename().lastIndexOf("."));
        String newFileName = UUID.randomUUID().toString().replaceAll("-", "") + suffix;
        //创建这个新文件
        File newFile = new File(fileSavePath + directory + newFileName);
        //复制操作
        try {
            file.transferTo(newFile);
            //协议 :// ip地址 ：端口号 / 文件目录(/images/2020/03/15/xxx.jpg)
            String url = request.getScheme() + "://" + IpUtil.getLocalIp4Address().get().toString().replaceAll("/", "") + ":" + request.getServerPort() + "/images/" + directory + newFileName;
            System.out.println("图片上传，访问URL：" + url);
            //return JsonResult.builder().data(url).message("上传成功！").code("200").build();
            return new JsonResult(url, HttpCode.SUCCESS);
        } catch (IOException e) {
            //return JsonResult.builder().data(null).message("IO异常！").code("500").build();
            return new JsonResult(null, HttpCode.FAILURE);
        }
    }


    public static void main(String[] args) throws SocketException {
        System.out.println(IpUtil.getLocalIp4Address().get().toString().replaceAll("/", ""));
    }

}
